A brachytherapy ring applicator, kit, and method of use is provided. The brachytherapy ring applicatory includes a tandem, ring colpostat, and a bracket assembly. The tandem has a connector on a proximal end of the tandem and a treatment end on a distal end. The ring colpostat includes a ring member on a distal end of the ring colpostat. The bracket assembly is configured to be locked to both a shaft of the tandem and to a shaft of the ring colpostat such that the distal end of the tandem is firmly maintained in a fixed position relative to the distal end of the ring colpostat, and each of the tandem and the colpostat are entirely self-supporting from the bracket assembly to their distal ends.